.side_main_layout {
    display: flex;

    .side_wrap {
        width: 240px;
        background-color: #F9F3E2;
        display: flex;
        flex-direction: column;
        font-size: 20px;

        border-right: 1px #F9F3E2 solid;

        .side_header {
            height: 90px;
            text-align: center;
            line-height: 90px;
            font-size: 20px;
            font-weight: bold;
            border-bottom: 1px #888 solid;
        }

        .side_body {
            flex: 1;

            min-height: 0;

            display: flex;
            flex-direction: column;
            // overflow: hidden;


            .side_body_container {
                height: 100%;
                width: 100%;
                // overflow: hidden;

                cursor: pointer;

                .category_item {
                    width: 100%;
                    padding: 20px 20px;

                    &:hover,
                    &.active {
                        cursor: pointer;
                        background-color: lightcoral;
                        color: white;
                    }
                }

                &.has_scroll_bar {
                    overflow-y: scroll;
                }
            }




        }

    }

    .main_wrap {
        display: flex;
        flex: 1;
        background-color: #ECDEBE;
        overflow: hidden;

        flex-direction: column;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;

        .main_container {
            width: 1580px;
            height: 840px;
            overflow-y: hidden;
            padding-top: -90px;

            .book_each {
                float: left;
                width: 230px;
                height: 300px;
                margin: 0px 40px 40px 40px;
                cursor: pointer;
                background-color: lightgrey;
               
               

                img {
                    width: 100%;
                    height: 100%;
                    background-size: 100% 100%;
                }

                &:hover
                {
                    border:1px orangered solid;
                }

                
            }

            &.has_scroll_bar {
                overflow-y: scroll;
            }
        }


    }



}